{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xfb0402ea971f688028f4c824c2c8e34a517db676c93c481b559659b31a017a40",
    "signature": "0x5ed8b0f8d7cb3e94d5f3c813b8d44c049f9be662c26472b5394b3fb1d898b62864e3e8a43c6871de19df83d35233d55f68a4b8a6f497841e443e26783900cd5e1b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}